Coupling means for spring motor to release and transmit its power



Dec. 13, 1960 KOBLER ,964,133

P. COUPLING MEANS FOR SPRING MOTOR, TO RELEASE AND TRANSMIT ITS POWER Filed DeG. 8, 1955 I N VENTOR @uM/M@ United Sttes COUPLING MEANS FR SPRING MTR T RELEASE AND TRANSMIT ITS PWER Paul Kohler, Lynbrook, NX.

Filed Dec. 8, 1955, Ser. No. 551,819

1 Claim. (Cl. 18S- 39) The object of this invention is to eliminate the winding up of a spring mechanism inside the casing by hand. This takes considerable time and effort. This device winds up the spring mechanism inside a casing very fast and the whole procedure is easy and very agreeable to operate.

The device has a spring motor with a coupling part supported by the structure of the spring motor and a corresponding, completely separate coupling part, being part of a separate device to be wound up at several intervals by one winding up of said spring motor.

Fig. 1 shows a front view of the hand operated driving device. The casing surrounding the mechanism has been cut open, so that the mechanism inside is plainly visible.

Fig. 2 is a front View of a shaver, with the upper casing taken olf, so that the inside mechanism is visible.

Fig. 3 is an enlarged section of 1. lt is a front view, enlarged, of the spring motor and the means to lock the power spring.

Fig. 4 is an enlarged section of gear 211 and lock 21B.

Fig. 5 is an enlarged top view of collar 26.

We have before us two completely separated devices. The hand driven device to store up energy and a separate device to be wound up at several intervals by one winding of said spring motor.

Fig. 1 has an entirely closed-in casing 1, and has in the middle of the casing a plunger 2. This plunger 2 is held at the other end in a hollow support fr. inside this support 3 is a spring 4. This spring d presses the plunger 2 upwards to its original position. Plunger 2 operates bar 5. 'This bar is pivoted at the other end at 6. Bar 5 operates connecting piece 7, which in turn operates plunger 8 and with it actuates a master cylinder 9 and a motor cylinder 11. Said units are connected by a pulsator link 19. The master cylinder is a small hydraulic pump. The hvdraulic pump 9 presses the fluid through a pulsator link 10. From there the fluid reaches the second small, hydraulic motor cylinder 11. Motor cylinder 11 has a spring inside. This spring 12 presses the plunger 13 back to its original position. Piunger 13 actuates a ratchet lever 14. Lever 14 has a pawl 15 with which gear 16 is moved forward. Pawl 17 prevents gear 16 from going backwards again. Gear 16 moves shaft 18. With shaft 18 spring 19 is wound up. This is the main spring. It is held in position by pawl 2li which goes into the teeth of gear 21. Pawl 20 is a part of a member which goes up to the top of casing 1. The top part 22 is pushed up to its normal position by spring 23. Member 22 has a square hole 24. Inside member 22 is a bar 25. This bar 25 drives the top part of member 22, which is a collar 26. Bar 25 has gear 27 which in turn is driven by gear 28. Gear 28 is driven by power spring 19.

The device operates as follows. It is placed on a table and by hand plunger 22 is pressed down a few times. This pushing down a plunger is much more agreeable than to wind up a mechanical device with a key on the device. lt can be pushed down while with the other hand the other device can be used. As before described the pushing down of the plunger winds up power spring 19. As soon as the springs 29 and 311, which are seen in Fig. 2 inside a shaver casing (or any other device may be used) should be wound up, the square shaft 31 of the shaver is pushed into the hole of collar 26, whereby the collar 26 presses down member 22. When member 22 is pressed down, pawl 2l) at the other end of member 22 is also pressed down and releases gear 21 with power spring 19. Thereby gears 28 and 27 spin fast around and also bar 25 with collar 26. Collar 26 with a square hole fits over the square end of 31 of the shaver end and winds up the springs inside the shaver. When the spring inside the shaver is wound up, the shaver is taken away from the device and the shaving can begin. As the spring 19 inside the device is much stronger than the springs inside the shaver, the shaver can be reloaded with power several times, as soon as necessary. The reloading goes very fast and nothing else has to be done than pushing the shaver end 31 into the hole of member 2.6. Member 26 will then be pushed down by collar 32 and with it pawl 2l)- releases gear 21.

The invention lies in the fact that a mechanical device to be wound up can be loaded with driving power several times by pressing one end of the device to be wound up into the power unit and that the power unit is automatically shut olf, as `soon as the device to be wound up is taken away from the power unit.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

A spring motor comprising input and output shafts journalled in a housing, a coil spring connecting the two shafts, ratchet means for rotating the input shaft in one direction to Wind up the spring, locking means operatively restraining the output shaft against rotation, said locking means being concentric to the output shaft and slidably journalled in said housing with spring means biasing it toward lock engaging position, a square shaped socket in the end of said output shaft surrounded by a portion of said locking means, a load carrying shaft having a square end adapted to tit into said socket, a collar on said load shaft adjacent said square end and adapted to engage said locking means to move it axially against said biasing spring to release said locking means when said square end is forcibly inserted into said socket, whereby said coil spring is released and rotates said output and load shafts.

References Cited in the tile of this patent UNITED STATES PATENTS 386,557 Roberts July 24, 1888 468,982 Moore Feb. 16, 1892 916,523 Armstrong Mar. 30, 1909 2,125,748 Rabald Aug. 2, 1938 2,160,738 Horn May 30, 1939 2,624,424 Kliewer Jan. 6, 1953 FOREIGN PATENTS 233,916 Switzerland Dec. 1, 1944 

